1. Mooghotel, Australia

This hotel in Sydney has just one luxury suite with its own pool, sundeck and gym. It´s designed for rock stars with access to a private recording studio, plasma TV screens, a spa, butler and chauffeured Jaguar XJR 100. One night at this hotel starts at $990 per night.

2. The One Hotel Angkor, Cambodia

This one is just as fancy as the one in Australia (Mooghotel). The hotel has a rooftop terrace, jacuzzi, personal chef, in-room spa treatments, use of a mobile phone during your stay, use of an iBook, iPod and two-person bath tub with underwater lighting and rainfall shower. One night at this hotel starts at $250 per night.

3. Hotel Everland, France

The hotel is located on the roof of the Palais de Tokyo in Paris and was designed by artists whose mission is to make guests feel like a part of the art. The hotel accepts bookings for one night at a time only.  Inside there’s a record collection to peruse, lounge, bedroom, gold-edged towels that you’re encouraged to take home, and a free minibar. One night at this hotel starts at $456 per night.

4. The Single Room Hotel, Germany

This hotel is easy to miss because it’s hidden behind billboards, and it’s basic but it’s central, cheap and unforgettable. One night at this hotel starts at $44 per night.

5. The Crane Hotel, Netherlands

The Crane Hotel is just that – a hotel in a crane. The machine room has been converted into luxury lodgings with a flat screen TV and a designer bathroom. Controls in the driver’s cabin allow you to swivel the whole thing for a unique view of the Dutch coast. One night at this hotel starts at $443 per night.

6. Grand Hotel de Kromme Raake, Netherlands

This former grocery shop was converted into a one-room-hotel in 1989  and it has held the record for the smallest hotel in the Guinness Book of World Records since its opening. One night at this hotel starts at $220 per night.

7. Hotel Utter Inn, Sweden

The Utter Inn looks like just another fishing hut floating on Lake Malaren, but the innocuous exterior hides an underwater hotel with just one bedroom, plus a toilet, kitchen and the terrace. One night at this hotel starts at $147 per night.

8. Kokopelli’s Cave, USA

The cave is carved out of 65-million-year-old sandstone, 70 feet below ground level in New Mexico’s dramatic mountain country. The cave is stocked with breakfast food and soft drinks, has a TV and DVD player, jacuzzi and waterfall-style shower. One night at this hotel starts at $240 per night.

9. Cedar Creek Treehouse, USA

The hotel is 50 feet (15 meters) up an ancient Western Red Cedar tree in Mount Rainier National Park. Guests wake up to bird song, the water rushing in the creek and their own chunk of private forest. One night at this hotel starts at $300 per night.

10. The Boot Bed ’n’ Breakfast, New Zealand 

The Boot is a two-storey cottage in the shape of a boot, in the country’s Tasman region. It’s in a grove of hazelnut trees with its own courtyard, which has sun loungers and outdoor fireplace to cosy up to when you’re enjoying a meal under the stars. One night at this hotel starts at $300 per night.